1、Brief Introduction
YC4BT series diesel engines are the newly-developed high-performance power of agricultural machinery with power coverage of 70 – 100 hp at the speed of 2000 – 2400r/m and are applicable for tractors with a power of 70 – 100 hp.
2、Picture of Engine
3、Features
● Main parts and components are designed by means of finite element analysis and the engine is characterized by compact construction and reasonable stressing.
● Adopting the particular analog computing technique of FEV, Germany, ensures lower fuel & oil consumption and noise, stronger power, longer service life and higher reliability.
● Adopting the domestic technically mature A type fuel injection pump and the whole-travel type governor provides lower governor response rate and stable rotation speed of the engine, and are specially applicable to the tractor.
● Adopting the built-in cooler ensures better cooling results to meet requirements of the agricultural machinery for continuous & full load operation.
● YC4B100T series engines are featured by higher reliability and lower fuel & oil consumption and the emission is up to Euro-Ⅱ standard.
● The oil sump of engine matching for tractor adopts the iron cast structure, and featured by stronger rigidity and less deformation, can meet the requirement of the frameless tractor.
4、Main Technical Parameters

Model	YC4B80T		YC4B100T
Type	Vertical, in-line, water-cooled, 4-stroke, direct injection
Intake way	Natural aspiration		Turbo-charging
No. of cylinders	4
Bore x Stroke（mm）	108X125
Displacement（L）	4.58
Compression ratio	17.5：1
Rated power/speed Rated （kW/r/min）	51.5/2200	55/2200	59/2300	66/2300	68/2300
Max. torque/speed（N﹒m/r/min）	295/1500~1800	310/1500~1800	330-400/1500~1800
Min. fuel consumption at full load (g/kW.h)	≤215
Governor response rate（%）	5～6
Cold starting performance（℃）	-10°without cold starting device, -25°with cold starting device
（Bosch）Max. smoke level at full load	≤3.0
Noise limit dB（A）	≤111